Abstract：
Nano-biocomposites of inorganic and organic components wereprepared to produce long-persistent phosphorescent artificial nacre-like materials. Biodegradable polylactic acid (PLA), graphene oxide (GO), and nanoparticles (13-20 nm) of lanthanide-doped aluminate pigment (NLAP) were used in a simple production procedure of an organic/inorganic hybrid nano-biocomposite. Both polylactic acid and GO nanosheets were chemically modified to form covalent and hydrogen bonding. The high toughness, good tensile strength, and great endurance of those bonds were achieved by their interactions at the interfaces. Long-persistent and reversible photoluminescence was shown by the prepared nacre substrates. Upon excitation at 365 nm, the nacre substrates generated an emission peak at 517 nm. When ultraviolet light was shone on luminescent nacres, they displayed a bright green colour. The high superhydrophobicity of the generated nacres was obtained without altering their mechanical characteristics.
摘要：
制备了无机和有机成分的纳米生物复合材料，以生产长持久的磷光人造珍珠母状材料。生物可降解聚乳酸(PLA),氧化石墨烯(GO),和镧系元素掺杂的铝酸盐颜料（NLAP）的纳米颗粒（13-20nm）用于有机/无机杂化纳米生物复合材料的简单生产过程中。聚乳酸和GO纳米片都被化学修饰以形成共价键和氢键。高韧性，良好的拉伸强度，这些键的巨大耐久性是通过它们在界面处的相互作用实现的。制备的珍珠母基质显示了长期持久和可逆的光致发光。在365nm激发时，珍珠质基质在517nm处产生发射峰。当紫外线照射到发光的珍珠母上时，它们显示出明亮的绿色。在不改变其机械特性的情况下，获得了生成的珍珠母的高超疏水性。
